The use of different structures of phenyl silicone rubber will directly affect the performance of the final product, but for methyl phenyl vinyl rubber, the vinyl content, distribution, etc. will also greatly affect the physical and vulcanization properties of the vulcanized rubber; Different benzene content greatly affects the low temperature resistance, damping performance, and radiation resistance of vulcanized rubber.

(1) Vinyl content
As the vinyl content in the raw rubber increases, the crosslinking ratio increases, and the hardness and tensile strength of the vulcanized rubber also increase accordingly, while the elongation and compression set decrease.

(2) Position and distribution of vinyl groups
The performance of vulcanized rubber obtained from ethylene terminated raw rubber is better than that obtained from non ethylene terminated universal grade raw rubber. This is because the end vinyl group has a molecular chain growth effect during crosslinking, thereby improving the physical and mechanical properties of the vulcanized rubber. Our company uses D4 as raw material to produce raw rubber, and the distribution of vinyl raw rubber on the side chain is more uniform, thereby improving the cross-linking density and better rebound.

(3) Phenyl content
The different benzene content in raw rubber determines the functionality of phenyl silica gel. Low benzene content raw rubber has the best low-temperature resistance, while medium benzene content can significantly improve the damping performance of silica gel; High phenyl silica gel can significantly demonstrate the radiation resistance of silica gel.

About Methyl phenyl vinyl silicone rubber,please check the details: Methyl phenyl vinyl silicone rubber IOTA 3120